header{
    z-index: 5;
    position: sticky;
    top: -30px;
    background-color: #1f1f1f;
    height: 150px;
    overflow: hidden;
    .head-top{
        height: 72px;
       margin-top: 30px;
       border-bottom:2px solid #292929 ;
       button{
           outline: none;
           border:none;
       }
       &-left{
           overflow: hidden;
           position: relative;
           .drop-div{
               
               
            button{
                background-color: #f3ad14;
                margin-top: 5px;
                margin-left: 10px;
                border-radius: 5px;
            }   

            
           }
           float: left;
           margin-top: 17px;
        span{
            color: white;
            font-size: 25px;  
        }
        button{
            margin-top: -15px;
            background-color: #1f1f1f;
            color:#fff;
        }
       }
       &-center{
           
           margin-left: 700px;
           img{
               float: left; 
           }  
           div{
            margin-top: 15px;
            float: right;
           }
           input{
               outline: none;
               border: none;
               float: left;
               line-height: 35px;
           }
           input:nth-child(1){
               background-color: #383838;
               padding-left: 15px;
               width: 300px;
               height: 35px;
               color: white;
           }
           input:nth-child(2){
            background-color: #f3ad14;
            padding-left: 15px;
            width: 90px;
            height: 35px;
            color: white;
        }
        }   
       }
       .head-center{
           
           overflow: hidden;
           &-left{
               float: left;
               position: relative;
               a{
                   margin: {
                       top: 10px;
                       left: 30px;
                   };
               }
               
           }
           .tabList{
               margin-left: 530px;
               margin-top: 10px;
               li{
                   float: left;
                   width: 100px;
                   text-align: center;
                   a{
                       color: #fff;
                       text-decoration: none;
                       &:hover{
                          color: #f3ad14; 
                       }
                   }
               }
           }
           a{
               float: right;
               color: #fff;
               margin-right: 20px;
               text-decoration: none;
               &:hover{
                color: #f3ad14; 
               }
           }
       }
    }